Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Rb8 draw
3 Rd8 draw
4 Re8 draw
5 Rf8 draw
6 Rg1 draw
7 Rg2 draw
8 Rg3 draw
9 Rg5 draw
10 Kc1 loss in 2 half-moves
11 Kc3 loss in 2 half-moves
12 Kc4 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Ke1 loss in 2 half-moves
15 Ke3 loss in 2 half-moves
16 Ke4 loss in 2 half-moves
17 Ra8 loss in 2 half-moves
18 Rc8 loss in 2 half-moves
19 Rg6 loss in 2 half-moves
20 Rg7 loss in 2 half-moves
21 Rh8 loss in 2 half-moves
22 K1c2 loss in 1 half-moves
23 K1d2 loss in 1 half-moves
24 K1e2 loss in 1 half-moves
25 K3c2 loss in 1 half-moves
26 K3d2 loss in 1 half-moves
27 K3e2 loss in 1 half-moves